CN211966716U

CN211966716U - Machining clamp

Info

Publication number: CN211966716U
Application number: CN202020553636.XU
Authority: CN
Inventors: 叶小武
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-20
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a machining fixture, comprises a workbench, the supporting leg, the holder supporter, the electro-magnet, the holder, centre gripping actuating mechanism and lift actuating mechanism, the workstation upper surface is equipped with the spout, centre gripping actuating mechanism locates in the workstation, holder supporter lower part parallel is equipped with screw hole and guiding hole, the holder supporter is located on the centre gripping actuating mechanism through screw hole and guiding hole and is slided and locate in the spout, be equipped with lift drive chamber and holder lift chamber in the upper portion cavity in the holder supporter, the holder lift intracavity is located to electro-magnet perpendicular to holder lift chamber roof and diapire, the holder block is located on the electro-magnet, be equipped with the grip block on the holder. The utility model belongs to the technical field of machining, specifically provide a be convenient for adjust holder position, and can adjust the grip block height according to the centre gripping mechanical part size to in accurate centre gripping mechanical part middle part, improve the machining anchor clamps of centre gripping stability.

Description

Machining clamp

Technical Field

The utility model belongs to the technical field of machining, specifically indicate a machining anchor clamps.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process. With the continuous development of science and technology, workpieces processed in the field of machining are gradually more complex, and therefore various machining clamps are derived.

But the existing machining clamp is still difficult to meet aiming at the personalized requirements. Machinery is various, and is not of uniform size, and current machining anchor clamps holder height is fixed, and when treating that centre gripping mechanical height is too big or when being too little, the intermediate position of mechanical part can not accurate centre gripping of holder, is unfavorable for the stable centre gripping of mechanical part.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a be convenient for adjust holder position, and can adjust the grip block height according to centre gripping mechanical part size to in accurate centre gripping mechanical part middle part, improve the machining anchor clamps of centre gripping stability.

The utility model adopts the following technical scheme: the utility model relates to a machining clamp, which comprises a workbench, supporting legs, a clamping piece supporting body, an electromagnet, a clamping piece, a clamping driving mechanism and a lifting driving mechanism, wherein the supporting legs are arranged below the workbench, the workbench is provided with a hollow cavity structure, the upper surface of the workbench is provided with a chute, the clamping driving mechanism is arranged in the workbench, the lower part of the clamping piece supporting body is provided with a threaded hole and a guide hole in parallel, the clamping piece supporting body is arranged on the clamping driving mechanism through the threaded hole and the guide hole and is arranged in the chute in a sliding way, the middle upper part of the clamping piece supporting body is provided with a hollow structure, a lifting driving cavity and a clamping piece lifting cavity are arranged in the hollow cavity at the middle upper part of the clamping piece supporting body, the side wall of the lifting cavity of the clamping piece is provided with a clamping piece sliding groove, the electromagnet is arranged in the lifting cavity, the clamping piece is clamped on the electromagnet, a clamping block is arranged on the clamping piece, the clamping block is arranged in a clamping block sliding groove in a penetrating and sliding mode, straight racks are arranged on two opposite side walls of the clamping piece, the lifting driving mechanism is arranged in the lifting driving cavity, and the lifting driving mechanism plays a driving role in lifting the clamping piece; the lifting driving mechanism comprises a lifting driving gear, a lifting transmission gear, a first lifting driving gear, a second lifting driving gear, a first lifting driven gear, a second lifting driven gear, a driving shaft, a transmission shaft, a first driven shaft and a second driven shaft, wherein the driving shaft and the transmission shaft are arranged on two opposite side walls of a lifting driving cavity in a parallel rotating manner, a crank is arranged on the driving shaft, the lifting driving gear is arranged on the driving shaft, the lifting transmission gear is arranged on the transmission shaft, the lifting transmission gear is meshed with the lifting driving gear, one end of the first driven shaft and one end of the second driven shaft are rotatably arranged on the side wall of the lifting driving cavity, the other end of the first driven shaft and the other end of the second driven shaft penetrate through the side wall of the lifting driving cavity and are rotatably arranged on the side wall of the lifting cavity of the clamping, the first lifting driving gear and the first lifting driven gear are arranged on the first driven shaft, the first lifting driving gear is meshed with the lifting driving gear, the second lifting driving gear and the second lifting driven gear are arranged on a second driven shaft, the second lifting driving gear is meshed with the lifting transmission gear, the first lifting driven gear and the second lifting driven gear are respectively meshed with straight racks on two side walls of the clamping piece, the crank is shaken, the driving shaft drives the lifting driving gear to rotate, the lifting driving gear drives the first lifting driving gear and the lifting transmission gear to rotate, the lifting transmission gear drives the second lifting driving gear, the first lifting driving gear and the second lifting driving gear respectively drive the first lifting driven gear and the second lifting driven gear to reversely rotate through the first driven shaft and the second driven shaft, and the first lifting driven gear and the second lifting driven gear are matched to drive the clamping piece to perform lifting motion through the straight racks; the clamping driving mechanism comprises a driving motor, a driving motor placing cavity, a driving shaft, a driving gear, a driven gear, a driving rod and a guide rod, the driving motor placing cavity is arranged on the bottom wall of the hollow cavity of the workbench, the driving motor is arranged in the driving motor placing cavity, the driving shaft is rotatably arranged on the side wall of the driving motor placing cavity and is connected with an output shaft of the driving motor, the driving gear is arranged on the driving shaft, the driving rod is rotatably arranged on the two opposite side walls of the hollow cavity of the workbench, the guide rod is fixedly arranged on the two opposite side walls of the hollow cavity of the workbench, the driving rod and the guide rod are arranged in parallel, the driven gear is arranged in the middle of the driving rod and is meshed with the driving gear, threads are symmetrically arranged on two sides of the driving rod driven gear, the directions of the threads, the clamping piece supporting body is connected with the driving rod through a threaded hole and is arranged on the driving rod, and the clamping piece supporting body is arranged on the guide rod through a guide hole and a guide rod in a sliding connection mode.

Furthermore, the clamping piece supporting body comprises a first clamping piece supporting body and a second clamping piece supporting body, the first clamping piece supporting body and the second clamping piece supporting body are symmetrically arranged on two sides of the driven gear, and the first clamping piece supporting body and the second clamping piece supporting body are matched to realize clamping of the mechanical piece.

Furthermore, the clamping blocks are internally provided with anti-skidding soft cushions, so that the clamping blocks are ensured to stably clamp mechanical parts, and the mechanical parts are prevented from being damaged.

Further, the holder is the iron holder, and when the electro-magnet circular telegram, the holder can be stably adsorbed on the electro-magnet, and when the electro-magnet outage, the holder can follow the electro-magnet up-and-down motion under lift drive gear's drive effect.

Further, the driving motor is a forward and reverse double-rotation motor.

Adopt above-mentioned structure the utility model discloses the beneficial effect who gains as follows: this scheme a machining anchor clamps cooperatees with centre gripping actuating mechanism through lift actuating mechanism, when realizing that the inside and outside removal adjusts the centre gripping of closely laminating centre gripping in the distance assurance between the holder, realized adjusting the holder height according to the actual big or small demand of mechanical part, guarantee holder centre gripping mechanical part middle part, promote the centre gripping stability, simultaneously, cooperate through electro-magnet and holder, can realize that the stable absorption formula of holder is fixed, can satisfy the convenient demand of adjusting the holder height of lift actuating mechanism again.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of a machining fixture of the present invention;

FIG. 2 is a cross-sectional view of a machining fixture holder support of the present invention;

fig. 3 is the utility model relates to a top view of machining anchor clamps holder supporter.

The lifting device comprises a working table 1, a working table 2, supporting legs 3, a clamping piece supporting body 4, an electromagnet 5, a clamping piece 6, a threaded hole 7, a guide hole 8, a lifting driving cavity 9, a clamping piece lifting cavity 10, a clamping block 11, a spur rack 12, a lifting driving gear 13, a lifting transmission gear 14, a first lifting driving gear 15, a second lifting driving gear 16, a first lifting driven gear 17, a second lifting driven gear 18, a driving shaft 19, a transmission shaft 20, a first driven shaft 21, a second driven shaft 22, a crank 23, a driving motor 24, a driving motor placing cavity 25, a driving shaft 26, a driving gear 27, a driven gear 28, a driving rod 29, a guide rod 30, a limiting block 31 and an anti-skidding cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in figures 1-3, the utility model relates to a machining fixture, which comprises a workbench 1, supporting legs 2, a clamping piece support body 3, an electromagnet 4, a clamping piece 5, a clamping driving mechanism and a lifting driving mechanism, wherein the supporting legs 2 are arranged below the workbench 1, the workbench 1 is provided with a hollow cavity structure, the upper surface of the workbench 1 is provided with a chute, the clamping driving mechanism is arranged in the workbench 1, the lower part of the clamping piece support body 3 is provided with a threaded hole 6 and a guide hole 7 in parallel, the clamping piece support body 3 is arranged on the clamping driving mechanism through the threaded hole 6 and the guide hole 7 and is arranged in the chute in a sliding way, the middle upper part of the clamping piece support body 3 is provided with a hollow structure, a lifting driving cavity 8 and a clamping piece lifting cavity 9 are arranged in the hollow cavity of the middle upper part of the clamping piece support body 3, the side wall of the clamping piece lifting cavity 9 is provided with a clamping block sliding groove, the electromagnet, the clamping piece 5 is clamped on the electromagnet 4, a clamping block 10 is arranged on the clamping piece 5, the clamping block 10 is arranged in a clamping block sliding groove in a penetrating and sliding mode, straight racks 11 are arranged on two opposite side walls of the clamping piece 5, the lifting driving mechanism is arranged in the lifting driving cavity 8, and the lifting driving mechanism drives the lifting of the clamping piece 5; the lifting driving mechanism comprises a lifting driving gear 12, a lifting transmission gear 13, a first lifting driving gear 14, a second lifting driving gear 15, a first lifting driven gear 16, a second lifting driven gear 17, a driving shaft 18, a transmission shaft 19, a first driven shaft 20 and a second driven shaft 21, wherein the driving shaft 18 and the transmission shaft 19 are arranged on two opposite side walls of the lifting driving cavity 8 in a parallel rotating manner, a crank 22 is arranged on the driving shaft 18, the lifting driving gear 12 is arranged on the driving shaft 18, the lifting transmission gear 13 is arranged on the transmission shaft 19, the lifting transmission gear 13 is meshed with the lifting driving gear 12, one end of the first driven shaft 20 and one end of the second driven shaft 21 are arranged on the side wall of the lifting driving cavity 8 in a rotating manner, the other end of the first driven shaft 20 and the other end of the second driven shaft 21 penetrate through the side wall of the lifting driving, the second driven shaft 21 is arranged on one side of the transmission shaft 19 in parallel, the first lifting driving gear 14 and the first lifting driven gear 16 are arranged on the first driven shaft 20, the first lifting driving gear 14 is meshed with the lifting driving gear 12, the second lifting driving gear 15 and the second lifting driven gear 17 are arranged on the second driven shaft 21, the second lifting driving gear 15 is meshed with the lifting transmission gear 13, and the first lifting driven gear 16 and the second lifting driven gear 17 are respectively meshed with the straight racks 11 on the two side walls of the clamping piece 5; the clamping driving mechanism comprises a driving motor 23, a driving motor placing cavity 24, a driving shaft 25, a driving gear 26, a driven gear 27, a driving rod 28 and a guide rod 29, the driving motor placing cavity 24 is arranged on the bottom wall of the hollow cavity of the workbench 1, the driving motor 23 is arranged in the driving motor placing cavity 24, the driving shaft 25 is rotatably arranged on the side wall of the driving motor placing cavity 24 and is connected with an output shaft of the driving motor 23, the driving gear 26 is arranged on the driving shaft 25, the driving rod 28 is rotatably arranged on two opposite side walls of the hollow cavity of the workbench 1, the guide rod 29 is fixedly arranged on two opposite side walls of the hollow cavity of the workbench 1, the driving rod 28 and the guide rod 29 are arranged in parallel, the driven gear 27 is arranged in the middle of the driving rod 28, the driven gear 27 is meshed with the driving gear 26, threads are symmetrically arranged, the middle part of the guide rod 29 is provided with a limiting block 30, the clamping piece supporting body 3 is connected with the driving rod 28 through a threaded hole 6 and a thread of the driving rod 28, and the clamping piece supporting body 3 is connected with the guide rod 29 through a guide hole 7 and is arranged on the guide rod 29 in a sliding manner.

The clamping piece supporting body 3 comprises a first clamping piece supporting body and a second clamping piece supporting body, the first clamping piece supporting body and the second clamping piece supporting body are symmetrically arranged on two sides of the driven gear 27, and the first clamping piece supporting body and the second clamping piece supporting body are matched to clamp a mechanical piece. The inboard antiskid cushion 31 that is equipped with of grip block 10 when guaranteeing that grip block 10 stabilizes the centre gripping mechanical part, avoids haring the mechanical part. The clamping piece 5 is an iron clamping piece, when the electromagnet 4 is electrified, the clamping piece 5 can be stably adsorbed on the electromagnet 4, and when the electromagnet 4 is powered off, the clamping piece 5 can move up and down along the electromagnet 4 under the driving action of the lifting driving gear. The driving motor 23 is a forward and reverse rotation motor.

When specifically using, according to the size of treating centre gripping mechanical part, adjust the height of holder 5, specifically the operation is as follows: the electromagnet 4 is powered off, the magnetic adsorption force between the electromagnet 4 and the clamping piece 5 disappears, the crank 22 is held, the driving shaft 18 is driven to rotate by rotating the crank 22, the driving shaft 18 drives the lifting driving gear 12 to rotate, the lifting driving gear 12 drives the first lifting driving gear 14 and the lifting driving gear 13 to rotate, the lifting driving gear 13 drives the second lifting driving gear 15, the first lifting driving gear 14 and the second lifting driving gear 15 respectively drive the first lifting driven gear 16 and the second lifting driven gear 17 to rotate reversely through the first driven shaft 20 and the second driven shaft 21, the first lifting driven gear 16 and the second lifting driven gear 17 respectively match from two sides of the clamping piece 5 and drive the clamping piece 5 to carry out lifting motion through the spur rack 11, so that the height of the lifting piece is adjusted, then, the electromagnet 4 is powered on, and the electromagnet 4 and the clamping piece 5 keep a relatively stable state through the electromagnetic adsorption force, start driving motor 23, driving motor 23 drives driving gear 26 rotatory, and driving gear 26 drives driven gear 27 rotatory, and driven gear 27 drives actuating lever 28 rotatory, and actuating lever 28 drives holder supporter 3 through the screw thread and is close to or keeps away from each other, and the centre gripping of mechanical part is realized in the cooperation of grip block 10 on the holder 5 when two sets of holder supporters 3 are close to each other.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a machining anchor clamps which characterized in that: the clamping device comprises a workbench, supporting legs, a clamping piece supporting body, an electromagnet, a clamping piece, a clamping driving mechanism and a lifting driving mechanism, wherein the supporting legs are arranged below the workbench, the workbench is in a hollow cavity structure, a sliding groove is formed in the upper surface of the workbench, the clamping driving mechanism is arranged in the workbench, a threaded hole and a guide hole are formed in the lower part of the clamping piece supporting body in parallel, the clamping piece supporting body is arranged on the clamping driving mechanism through the threaded hole and the guide hole and is arranged in the sliding groove in a sliding manner, the middle upper part of the clamping piece supporting body is in a hollow structure, a lifting driving cavity and a clamping piece lifting cavity are formed in the hollow cavity in the middle upper part of the clamping piece supporting body, a clamping block sliding groove is formed in the side wall of the clamping piece lifting cavity, the electromagnet is perpendicular to the top wall and the bottom wall of the clamping piece, the clamping piece is provided with a clamping block, the clamping block is arranged in a clamping block sliding groove in a penetrating and sliding mode, two opposite side walls of the clamping piece are provided with straight racks, and the lifting driving mechanism is arranged in the lifting driving cavity; the lifting driving mechanism comprises a lifting driving gear, a lifting transmission gear, a first lifting driving gear, a second lifting driving gear, a first lifting driven gear, a second lifting driven gear, a driving shaft, a transmission shaft, a first driven shaft and a second driven shaft, wherein the driving shaft and the transmission shaft are arranged on two opposite side walls of a lifting driving cavity in a parallel rotating manner, a crank is arranged on the driving shaft, the lifting driving gear is arranged on the driving shaft, the lifting transmission gear is arranged on the transmission shaft, one end of the first driven shaft and one end of the second driven shaft are rotatably arranged on the side wall of the lifting driving cavity, the other ends of the first driven shaft and the second driven shaft penetrate through the side wall of the lifting driving cavity to be rotatably arranged on the side wall of the lifting cavity of the clamping piece, the first driven shaft is arranged on one side of the driving shaft in a parallel manner, the second driven shaft is, the first lifting driven gear and the second lifting driven gear are respectively meshed with straight racks on two side walls of the clamping piece; the clamping driving mechanism comprises a driving motor, a driving motor placing cavity, a driving shaft, a driving gear, a driven gear, a driving rod and a guide rod, the driving motor placing cavity is arranged on the bottom wall of the hollow cavity of the workbench, the driving motor is arranged in the driving motor placing cavity, the driving shaft is rotatably arranged on the side wall of the driving motor placing cavity and is connected with an output shaft of the driving motor, the driving gear is arranged on the driving shaft, the driving rod is rotatably arranged on the two opposite side walls of the hollow cavity of the workbench, the guide rod is fixedly arranged on the two opposite side walls of the hollow cavity of the workbench, the driving rod and the guide rod are arranged in parallel, the driven gear is arranged in the middle of the driving rod, threads are symmetrically arranged on two sides of the driving rod driven gear, the thread directions of two sides of the driving rod driven gear are opposite, a limiting block is, the clamping piece supporting body is arranged on the guide rod through the guide hole and the guide rod in a sliding connection mode.

2. A machining jig according to claim 1, wherein: the clamping piece supporting body comprises a first clamping piece supporting body and a second clamping piece supporting body, and the first clamping piece supporting body and the second clamping piece supporting body are symmetrically arranged on two sides of the driven gear.

3. A machining jig according to claim 1, wherein: the inner side of the clamping block is provided with an anti-skidding soft cushion.

4. A machining jig according to claim 1, wherein: the clamping piece is an iron clamping piece.

5. A machining jig according to claim 1, wherein: the driving motor is a forward and reverse double-rotation motor.